1061 lines
22 KiB
C
1061 lines
22 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "quakedef.h"
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movevars_t movevars;
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playermove_t pmove;
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float frametime;
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vec3_t forward, right, up;
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vec3_t player_mins = {-16, -16, -24};
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vec3_t player_maxs = {16, 16, 32};
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void PM_Init (void)
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{
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PM_InitBoxHull();
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}
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#define MIN_STEP_NORMAL 0.7 // roughly 45 degrees
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#define pm_flyfriction 4
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#define STOP_EPSILON 0.1
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#define BLOCKED_FLOOR 1
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#define BLOCKED_STEP 2
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#define BLOCKED_OTHER 4
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#define BLOCKED_ANY 7
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/*
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==================
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PM_ClipVelocity
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Slide off of the impacting object
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returns the blocked flags (1 = floor, 2 = step / wall)
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==================
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*/
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int PM_ClipVelocity (vec3_t in, vec3_t normal, vec3_t out, float overbounce)
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{
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float backoff;
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float change;
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int i, blocked;
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blocked = 0;
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if (normal[2] > 0)
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blocked |= BLOCKED_FLOOR; // floor
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if (!normal[2])
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blocked |= BLOCKED_STEP; // step
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backoff = DotProduct (in, normal) * overbounce;
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for (i=0 ; i<3 ; i++)
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{
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change = normal[i]*backoff;
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out[i] = in[i] - change;
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if (out[i] > -STOP_EPSILON && out[i] < STOP_EPSILON)
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out[i] = 0;
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}
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return blocked;
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}
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/*
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============
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PM_SlideMove
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The basic solid body movement clip that slides along multiple planes
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============
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*/
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#define MAX_CLIP_PLANES 5
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int PM_SlideMove (void)
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{
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int bumpcount, numbumps;
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vec3_t dir;
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float d;
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int numplanes;
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vec3_t planes[MAX_CLIP_PLANES];
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vec3_t primal_velocity, original_velocity;
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int i, j;
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trace_t trace;
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vec3_t end;
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float time_left;
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int blocked;
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numbumps = 4;
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blocked = 0;
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VectorCopy (pmove.velocity, original_velocity);
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VectorCopy (pmove.velocity, primal_velocity);
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numplanes = 0;
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time_left = frametime;
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for (bumpcount=0 ; bumpcount<numbumps ; bumpcount++)
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{
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for (i=0 ; i<3 ; i++)
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end[i] = pmove.origin[i] + time_left * pmove.velocity[i];
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trace = PM_PlayerTrace (pmove.origin, end);
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if (trace.startsolid || trace.allsolid)
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{ // entity is trapped in another solid
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VectorClear (pmove.velocity);
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return 3;
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}
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if (trace.fraction > 0)
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{ // actually covered some distance
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VectorCopy (trace.endpos, pmove.origin);
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numplanes = 0;
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}
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if (trace.fraction == 1)
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break; // moved the entire distance
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// save entity for contact
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if (pmove.numtouch < MAX_PHYSENTS)
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{
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pmove.touchindex[pmove.numtouch] = trace.entnum;
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pmove.numtouch++;
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}
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if (trace.plane.normal[2] >= MIN_STEP_NORMAL)
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blocked |= BLOCKED_FLOOR;
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else if (!trace.plane.normal[2])
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blocked |= BLOCKED_STEP;
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else
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blocked |= BLOCKED_OTHER;
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time_left -= time_left * trace.fraction;
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// cliped to another plane
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if (numplanes >= MAX_CLIP_PLANES)
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{ // this shouldn't really happen
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VectorClear (pmove.velocity);
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break;
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}
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VectorCopy (trace.plane.normal, planes[numplanes]);
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numplanes++;
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//
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// modify original_velocity so it parallels all of the clip planes
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//
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for (i=0 ; i<numplanes ; i++)
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{
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PM_ClipVelocity (original_velocity, planes[i], pmove.velocity, 1);
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for (j=0 ; j<numplanes ; j++)
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if (j != i)
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{
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if (DotProduct (pmove.velocity, planes[j]) < 0)
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break; // not ok
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}
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if (j == numplanes)
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break;
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}
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if (i != numplanes)
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{ // go along this plane
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}
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else
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{ // go along the crease
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if (numplanes != 2)
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{
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VectorClear (pmove.velocity);
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break;
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}
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CrossProduct (planes[0], planes[1], dir);
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d = DotProduct (dir, pmove.velocity);
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VectorScale (dir, d, pmove.velocity);
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}
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//
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// if velocity is against the original velocity, stop dead
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// to avoid tiny occilations in sloping corners
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//
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if (DotProduct (pmove.velocity, primal_velocity) <= 0)
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{
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VectorClear (pmove.velocity);
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break;
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}
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}
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if (pmove.waterjumptime)
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{
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VectorCopy (primal_velocity, pmove.velocity);
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}
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return blocked;
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}
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/*
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=============
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PM_StepSlideMove
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Each intersection will try to step over the obstruction instead of
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sliding along it.
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=============
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*/
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void PM_StepSlideMove (void)
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{
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vec3_t dest;
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trace_t trace;
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vec3_t original, originalvel, down, up, downvel;
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float downdist, updist;
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int blocked;
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// try sliding forward both on ground and up 16 pixels
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// take the move that goes farthest
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VectorCopy (pmove.origin, original);
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VectorCopy (pmove.velocity, originalvel);
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blocked = PM_SlideMove ();
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if (!blocked)
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return; // moved the entire distance
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VectorCopy (pmove.origin, down);
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VectorCopy (pmove.velocity, downvel);
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VectorCopy (original, pmove.origin);
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VectorCopy (originalvel, pmove.velocity);
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// move up a stair height
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VectorCopy (pmove.origin, dest);
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dest[2] += pm_stepheight;
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trace = PM_PlayerTrace (pmove.origin, dest);
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if (!trace.startsolid && !trace.allsolid)
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{
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VectorCopy (trace.endpos, pmove.origin);
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}
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PM_SlideMove ();
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// press down the stepheight
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VectorCopy (pmove.origin, dest);
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dest[2] -= pm_stepheight;
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trace = PM_PlayerTrace (pmove.origin, dest);
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if (trace.fraction != 1 && trace.plane.normal[2] < MIN_STEP_NORMAL)
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goto usedown;
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if (!trace.startsolid && !trace.allsolid)
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{
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VectorCopy (trace.endpos, pmove.origin);
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}
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if (pmove.origin[2] < original[2])
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goto usedown;
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VectorCopy (pmove.origin, up);
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// decide which one went farther
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downdist = (down[0] - original[0])*(down[0] - original[0])
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+ (down[1] - original[1])*(down[1] - original[1]);
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updist = (up[0] - original[0])*(up[0] - original[0])
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+ (up[1] - original[1])*(up[1] - original[1]);
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if (downdist >= updist)
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{
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usedown:
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VectorCopy (down, pmove.origin);
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VectorCopy (downvel, pmove.velocity);
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return;
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}
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// copy z value from slide move
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pmove.velocity[2] = downvel[2];
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if (!pmove.onground && pmove.waterlevel < 2 && (blocked & BLOCKED_STEP)) {
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float scale;
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// in pm_airstep mode, walking up a 16 unit high step
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// will kill 16% of horizontal velocity
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scale = 1 - 0.01*(pmove.origin[2] - original[2]);
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pmove.velocity[0] *= scale;
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pmove.velocity[1] *= scale;
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}
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}
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/*
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==================
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PM_Friction
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Handles both ground friction and water friction
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==================
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*/
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void PM_Friction (void)
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{
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float speed, newspeed, control;
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float friction;
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float drop;
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vec3_t start, stop;
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trace_t trace;
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if (pmove.waterjumptime)
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return;
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speed = Length(pmove.velocity);
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if (speed < 1)
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{
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pmove.velocity[0] = 0;
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pmove.velocity[1] = 0;
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if (pmove.pm_type == PM_FLY)
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pmove.velocity[2] = 0;
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return;
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}
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if (pmove.waterlevel >= 2)
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// apply water friction, even if in fly mode
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drop = speed*movevars.waterfriction*pmove.waterlevel*frametime;
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else if (pmove.pm_type == PM_FLY) {
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// apply flymode friction
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drop = speed * pm_flyfriction * frametime;
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}
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else if (pmove.onground) {
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// apply ground friction
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friction = movevars.friction;
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// if the leading edge is over a dropoff, increase friction
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start[0] = stop[0] = pmove.origin[0] + pmove.velocity[0]/speed*16;
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start[1] = stop[1] = pmove.origin[1] + pmove.velocity[1]/speed*16;
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start[2] = pmove.origin[2] + player_mins[2];
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stop[2] = start[2] - 34;
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trace = PM_PlayerTrace (start, stop);
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if (trace.fraction == 1)
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friction *= 2;
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control = speed < movevars.stopspeed ? movevars.stopspeed : speed;
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drop = control*friction*frametime;
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}
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else if (pmove.onladder)
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{
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control = speed < movevars.stopspeed ? movevars.stopspeed : speed;
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drop = control*movevars.friction*frametime*6;
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}
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else
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return; // in air, no friction
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// scale the velocity
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newspeed = speed - drop;
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if (newspeed < 0)
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newspeed = 0;
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VectorScale (pmove.velocity, newspeed / speed, pmove.velocity);
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}
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/*
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==============
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PM_Accelerate
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==============
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*/
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void PM_Accelerate (vec3_t wishdir, float wishspeed, float accel)
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{
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int i;
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float addspeed, accelspeed, currentspeed;
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if (pmove.pm_type == PM_DEAD)
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return;
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if (pmove.waterjumptime)
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return;
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currentspeed = DotProduct (pmove.velocity, wishdir);
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addspeed = wishspeed - currentspeed;
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if (addspeed <= 0)
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return;
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accelspeed = accel*frametime*wishspeed;
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if (accelspeed > addspeed)
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accelspeed = addspeed;
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for (i=0 ; i<3 ; i++)
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pmove.velocity[i] += accelspeed*wishdir[i];
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}
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void PM_AirAccelerate (vec3_t wishdir, float wishspeed, float accel)
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{
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int i;
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float addspeed, accelspeed, currentspeed, wishspd = wishspeed;
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float originalspeed, newspeed, speedcap;
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if (pmove.pm_type == PM_DEAD)
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return;
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if (pmove.waterjumptime)
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return;
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if (movevars.bunnyspeedcap > 0)
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{
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originalspeed = sqrt(pmove.velocity[0]*pmove.velocity[0] +
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pmove.velocity[1]*pmove.velocity[1]);
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}
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else
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originalspeed = 0; //shh compiler.
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if (wishspd > 30)
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wishspd = 30;
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currentspeed = DotProduct (pmove.velocity, wishdir);
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addspeed = wishspd - currentspeed;
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if (addspeed <= 0)
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return;
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accelspeed = accel * wishspeed * frametime;
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if (accelspeed > addspeed)
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accelspeed = addspeed;
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for (i=0 ; i<3 ; i++)
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pmove.velocity[i] += accelspeed*wishdir[i];
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if (movevars.bunnyspeedcap > 0)
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{
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newspeed = sqrt(pmove.velocity[0]*pmove.velocity[0] +
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pmove.velocity[1]*pmove.velocity[1]);
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if (newspeed > originalspeed)
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{
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speedcap = movevars.maxspeed * movevars.bunnyspeedcap;
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if (newspeed > speedcap)
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{
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if (originalspeed < speedcap)
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originalspeed = speedcap;
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pmove.velocity[0] *= originalspeed / newspeed;
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pmove.velocity[1] *= originalspeed / newspeed;
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}
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}
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}
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}
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/*
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===================
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PM_WaterMove
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===================
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*/
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void PM_WaterMove (void)
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{
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int i;
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vec3_t wishvel;
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float wishspeed;
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vec3_t wishdir;
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//
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// user intentions
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//
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for (i=0 ; i<3 ; i++)
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wishvel[i] = forward[i]*pmove.cmd.forwardmove + right[i]*pmove.cmd.sidemove;
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if (pmove.pm_type != PM_FLY && !pmove.cmd.forwardmove && !pmove.cmd.sidemove && !pmove.cmd.upmove)
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wishvel[2] -= 60; // drift towards bottom
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else
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wishvel[2] += pmove.cmd.upmove;
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VectorCopy (wishvel, wishdir);
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wishspeed = VectorNormalize(wishdir);
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if (wishspeed > movevars.maxspeed) {
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VectorScale (wishvel, movevars.maxspeed/wishspeed, wishvel);
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wishspeed = movevars.maxspeed;
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}
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wishspeed *= 0.7;
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//
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// water acceleration
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//
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PM_Accelerate (wishdir, wishspeed, movevars.wateraccelerate);
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PM_StepSlideMove ();
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}
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/*
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*/
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void PM_FlyMove ()
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{
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int i;
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vec3_t wishvel;
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float wishspeed;
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vec3_t wishdir;
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for (i=0 ; i<3 ; i++)
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wishvel[i] = forward[i]*pmove.cmd.forwardmove + right[i]*pmove.cmd.sidemove;
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wishvel[2] += pmove.cmd.upmove;
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VectorCopy (wishvel, wishdir);
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wishspeed = VectorNormalize(wishdir);
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if (wishspeed > movevars.maxspeed) {
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VectorScale (wishvel, movevars.maxspeed/wishspeed, wishvel);
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wishspeed = movevars.maxspeed;
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}
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PM_Accelerate (wishdir, wishspeed, movevars.accelerate);
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PM_StepSlideMove ();
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}
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void PM_LadderMove (void)
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{
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int i;
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vec3_t wishvel;
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float wishspeed;
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vec3_t wishdir;
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vec3_t start, dest;
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trace_t trace;
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//
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// user intentions
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//
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for (i=0 ; i<3 ; i++)
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wishvel[i] = forward[i]*pmove.cmd.forwardmove + right[i]*pmove.cmd.sidemove + up[i]*pmove.cmd.upmove;
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if (wishvel[2] > 100 || wishvel[2] < -100) //large up/down move
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wishvel[2]*=10;
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if (pmove.cmd.buttons & 2)
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wishvel[2]+=100;
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VectorCopy (wishvel, wishdir);
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wishspeed = VectorNormalize(wishdir);
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if (wishspeed > movevars.maxspeed)
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{
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VectorScale (wishvel, movevars.maxspeed/wishspeed, wishvel);
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wishspeed = movevars.maxspeed;
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}
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PM_Accelerate (wishdir, wishspeed, movevars.wateraccelerate);
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// assume it is a stair or a slope, so press down from stepheight above
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VectorMA (pmove.origin, frametime, pmove.velocity, dest);
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VectorCopy (dest, start);
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start[2] += pm_stepheight + 1;
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trace = PM_PlayerTrace (start, dest);
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if (!trace.startsolid && !trace.allsolid) // FIXME: check steep slope?
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{ // walked up the step
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VectorCopy (trace.endpos, pmove.origin);
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return;
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}
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PM_FlyMove ();
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}
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|
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/*
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===================
|
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PM_AirMove
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===================
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|
*/
|
|
void PM_AirMove (void)
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{
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int i;
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vec3_t wishvel;
|
|
float fmove, smove;
|
|
vec3_t wishdir;
|
|
float wishspeed;
|
|
|
|
fmove = pmove.cmd.forwardmove;
|
|
smove = pmove.cmd.sidemove;
|
|
|
|
forward[2] = 0;
|
|
right[2] = 0;
|
|
VectorNormalize (forward);
|
|
VectorNormalize (right);
|
|
|
|
for (i=0 ; i<2 ; i++)
|
|
wishvel[i] = forward[i]*fmove + right[i]*smove;
|
|
wishvel[2] = 0;
|
|
|
|
VectorCopy (wishvel, wishdir);
|
|
wishspeed = VectorNormalize(wishdir);
|
|
|
|
//
|
|
// clamp to server defined max speed
|
|
//
|
|
if (wishspeed > movevars.maxspeed)
|
|
{
|
|
VectorScale (wishvel, movevars.maxspeed/wishspeed, wishvel);
|
|
wishspeed = movevars.maxspeed;
|
|
}
|
|
|
|
if (pmove.onground)
|
|
{
|
|
if (pmove.velocity[2] > 0 || !movevars.slidefix)
|
|
pmove.velocity[2] = 0;
|
|
PM_Accelerate (wishdir, wishspeed, movevars.accelerate);
|
|
pmove.velocity[2] -= movevars.entgravity * movevars.gravity * frametime;
|
|
|
|
if (!movevars.slidefix)
|
|
pmove.velocity[2] = 0;
|
|
|
|
if (!pmove.velocity[0] && !pmove.velocity[1])
|
|
{
|
|
pmove.velocity[2] = 0;
|
|
return;
|
|
}
|
|
|
|
PM_StepSlideMove ();
|
|
}
|
|
else
|
|
{ // not on ground, so little effect on velocity
|
|
PM_AirAccelerate (wishdir, wishspeed, movevars.accelerate);
|
|
|
|
// add gravity
|
|
pmove.velocity[2] -= movevars.entgravity * movevars.gravity * frametime;
|
|
|
|
if (movevars.airstep)
|
|
PM_StepSlideMove ();
|
|
else
|
|
PM_SlideMove ();
|
|
}
|
|
}
|
|
|
|
|
|
cplane_t groundplane;
|
|
|
|
/*
|
|
=============
|
|
PM_CategorizePosition
|
|
=============
|
|
*/
|
|
void PM_CategorizePosition (void)
|
|
{
|
|
vec3_t point;
|
|
int cont;
|
|
trace_t trace;
|
|
|
|
// if the player hull point one unit down is solid, the player
|
|
// is on ground
|
|
|
|
// see if standing on something solid
|
|
point[0] = pmove.origin[0];
|
|
point[1] = pmove.origin[1];
|
|
point[2] = pmove.origin[2] - 1;
|
|
trace.startsolid = trace.allsolid = true;
|
|
VectorClear(trace.endpos);
|
|
if (pmove.velocity[2] > 180)
|
|
{
|
|
pmove.onground = false;
|
|
}
|
|
else
|
|
{
|
|
trace = PM_PlayerTrace (pmove.origin, point);
|
|
if (trace.fraction == 1 || trace.plane.normal[2] < MIN_STEP_NORMAL)
|
|
pmove.onground = false;
|
|
else
|
|
{
|
|
pmove.onground = true;
|
|
pmove.groundent = trace.entnum;
|
|
groundplane = trace.plane;
|
|
pmove.waterjumptime = 0;
|
|
}
|
|
|
|
// standing on an entity other than the world
|
|
if (trace.entnum > 0)
|
|
{
|
|
if (pmove.numtouch < MAX_PHYSENTS) {
|
|
pmove.touchindex[pmove.numtouch] = trace.entnum;
|
|
pmove.numtouch++;
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// get waterlevel
|
|
//
|
|
pmove.waterlevel = 0;
|
|
pmove.watertype = FTECONTENTS_EMPTY;
|
|
|
|
point[2] = pmove.origin[2] + player_mins[2] + 1;
|
|
cont = PM_PointContents (point);
|
|
|
|
if (cont & FTECONTENTS_FLUID)
|
|
{
|
|
pmove.watertype = cont;
|
|
pmove.waterlevel = 1;
|
|
point[2] = pmove.origin[2] + (player_mins[2] + player_maxs[2])*0.5;
|
|
cont = PM_PointContents (point);
|
|
if (cont & FTECONTENTS_FLUID)
|
|
{
|
|
pmove.waterlevel = 2;
|
|
point[2] = pmove.origin[2] + player_mins[2]+24+DEFAULT_VIEWHEIGHT;
|
|
cont = PM_PointContents (point);
|
|
if (cont & FTECONTENTS_FLUID)
|
|
pmove.waterlevel = 3;
|
|
}
|
|
}
|
|
|
|
//are we on a ladder?
|
|
#ifdef Q2BSPS
|
|
if (cont & FTECONTENTS_LADDER && pmove.physents[0].model->fromgame == fg_quake2)
|
|
{
|
|
trace_t t;
|
|
vec3_t flatforward, fwd1;
|
|
|
|
flatforward[0] = forward[0];
|
|
flatforward[1] = forward[1];
|
|
flatforward[2] = 0;
|
|
VectorNormalize (flatforward);
|
|
|
|
VectorMA (pmove.origin, 24, flatforward, fwd1);
|
|
|
|
//if we hit a wall when going forwards and we are in a ladder region, then we are on a ladder.
|
|
if (pmove.physents[0].model->fromgame == fg_quake2)
|
|
{
|
|
t = CM_BoxTrace(pmove.origin, fwd1, player_mins, player_maxs, pmove.physents[0].model->hulls[0].firstclipnode, MASK_PLAYERSOLID);
|
|
if (t.fraction < 1)
|
|
{
|
|
pmove.onladder = true;
|
|
pmove.onground = false; // too steep
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (pmove.onground && pmove.pm_type != PM_FLY && pmove.waterlevel < 3)
|
|
{
|
|
// snap to ground so that we can't jump higher than we're supposed to
|
|
if (!trace.startsolid && !trace.allsolid)
|
|
VectorCopy (trace.endpos, pmove.origin);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
PM_CheckJump
|
|
=============
|
|
*/
|
|
void PM_CheckJump (void)
|
|
{
|
|
if (pmove.pm_type == PM_FLY)
|
|
return;
|
|
|
|
if (pmove.pm_type == PM_DEAD)
|
|
{
|
|
pmove.jump_held = true; // don't jump on respawn
|
|
return;
|
|
}
|
|
|
|
if (!(pmove.cmd.buttons & BUTTON_JUMP))
|
|
{
|
|
pmove.jump_held = false;
|
|
return;
|
|
}
|
|
|
|
if (pmove.waterjumptime)
|
|
return;
|
|
|
|
if (pmove.waterlevel >= 2)
|
|
{ // swimming, not jumping
|
|
pmove.onground = false;
|
|
|
|
if (pmove.watertype == FTECONTENTS_WATER)
|
|
pmove.velocity[2] = 100;
|
|
else if (pmove.watertype == FTECONTENTS_SLIME)
|
|
pmove.velocity[2] = 80;
|
|
else
|
|
pmove.velocity[2] = 50;
|
|
return;
|
|
}
|
|
|
|
if (!pmove.onground)
|
|
return; // in air, so no effect
|
|
|
|
if (pmove.jump_held && !pmove.jump_msec)
|
|
return; // don't pogo stick
|
|
|
|
// check for jump bug
|
|
// groundplane normal was set in the call to PM_CategorizePosition
|
|
if (pmove.velocity[2] < 0 &&
|
|
DotProduct(pmove.velocity, groundplane.normal) < -0.1)
|
|
{
|
|
// pmove.velocity is pointing into the ground, clip it
|
|
PM_ClipVelocity (pmove.velocity, groundplane.normal, pmove.velocity, 1);
|
|
}
|
|
|
|
pmove.onground = false;
|
|
pmove.velocity[2] += 270;
|
|
|
|
if (movevars.ktjump > 0)
|
|
{
|
|
if (movevars.ktjump > 1)
|
|
movevars.ktjump = 1;
|
|
if (pmove.velocity[2] < 270)
|
|
pmove.velocity[2] = pmove.velocity[2] * (1 - movevars.ktjump)
|
|
+ 270 * movevars.ktjump;
|
|
}
|
|
|
|
pmove.jump_held = true; // don't jump again until released
|
|
|
|
pmove.jump_msec = pmove.cmd.msec;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
PM_CheckWaterJump
|
|
=============
|
|
*/
|
|
void PM_CheckWaterJump (void)
|
|
{
|
|
vec3_t spot;
|
|
int cont;
|
|
vec3_t flatforward;
|
|
|
|
if (pmove.waterjumptime>0)
|
|
return;
|
|
|
|
// don't hop out if we just jumped in
|
|
if (pmove.velocity[2] < -180)
|
|
return;
|
|
|
|
// see if near an edge
|
|
flatforward[0] = forward[0];
|
|
flatforward[1] = forward[1];
|
|
flatforward[2] = 0;
|
|
VectorNormalize (flatforward);
|
|
|
|
VectorMA (pmove.origin, 24, flatforward, spot);
|
|
spot[2] += 8 + 24+player_mins[2]; //hexen2 fix. calculated from the normal bottom of bbox
|
|
cont = PM_PointContents (spot);
|
|
if (!(cont & FTECONTENTS_SOLID))
|
|
return;
|
|
spot[2] += 24;
|
|
cont = PM_PointContents (spot);
|
|
if (cont != FTECONTENTS_EMPTY)
|
|
return;
|
|
// jump out of water
|
|
VectorScale (flatforward, 50, pmove.velocity);
|
|
pmove.velocity[2] = 310;
|
|
pmove.waterjumptime = 2; // safety net
|
|
pmove.jump_held = true; // don't jump again until released
|
|
}
|
|
|
|
/*
|
|
=================
|
|
PM_NudgePosition
|
|
|
|
If pmove.origin is in a solid position,
|
|
try nudging slightly on all axis to
|
|
allow for the cut precision of the net coordinates
|
|
=================
|
|
*/
|
|
void PM_NudgePosition (void)
|
|
{
|
|
vec3_t base;
|
|
int x, y, z;
|
|
int i;
|
|
static int sign[3] = {0, -1, 1};
|
|
|
|
VectorCopy (pmove.origin, base);
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
pmove.origin[i] = ((int)(pmove.origin[i]*8)) * 0.125;
|
|
|
|
for (z=0 ; z<=2 ; z++)
|
|
{
|
|
for (x=0 ; x<=2 ; x++)
|
|
{
|
|
for (y=0 ; y<=2 ; y++)
|
|
{
|
|
pmove.origin[0] = base[0] + (sign[x] * 1.0/8);
|
|
pmove.origin[1] = base[1] + (sign[y] * 1.0/8);
|
|
pmove.origin[2] = base[2] + (sign[z] * 1.0/8);
|
|
if (PM_TestPlayerPosition (pmove.origin))
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
VectorCopy (base, pmove.origin);
|
|
// Com_DPrintf ("NudgePosition: stuck\n");
|
|
}
|
|
|
|
/*
|
|
===============
|
|
PM_SpectatorMove
|
|
===============
|
|
*/
|
|
void PM_SpectatorMove (void)
|
|
{
|
|
float speed, drop, friction, control, newspeed;
|
|
float currentspeed, addspeed, accelspeed;
|
|
int i;
|
|
vec3_t wishvel;
|
|
float fmove, smove;
|
|
vec3_t wishdir;
|
|
float wishspeed;
|
|
|
|
// friction
|
|
|
|
speed = Length (pmove.velocity);
|
|
if (speed < 1)
|
|
{
|
|
VectorClear (pmove.velocity);
|
|
}
|
|
else
|
|
{
|
|
drop = 0;
|
|
|
|
friction = movevars.friction*1.5; // extra friction
|
|
control = speed < movevars.stopspeed ? movevars.stopspeed : speed;
|
|
drop += control*friction*frametime;
|
|
|
|
// scale the velocity
|
|
newspeed = speed - drop;
|
|
if (newspeed < 0)
|
|
newspeed = 0;
|
|
newspeed /= speed;
|
|
|
|
VectorScale (pmove.velocity, newspeed, pmove.velocity);
|
|
}
|
|
|
|
// accelerate
|
|
fmove = pmove.cmd.forwardmove;
|
|
smove = pmove.cmd.sidemove;
|
|
|
|
VectorNormalize (forward);
|
|
VectorNormalize (right);
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
wishvel[i] = forward[i]*fmove + right[i]*smove;
|
|
wishvel[2] += pmove.cmd.upmove;
|
|
|
|
VectorCopy (wishvel, wishdir);
|
|
wishspeed = VectorNormalize(wishdir);
|
|
|
|
//
|
|
// clamp to server defined max speed
|
|
//
|
|
if (wishspeed > movevars.spectatormaxspeed)
|
|
{
|
|
VectorScale (wishvel, movevars.spectatormaxspeed/wishspeed, wishvel);
|
|
wishspeed = movevars.spectatormaxspeed;
|
|
}
|
|
|
|
currentspeed = DotProduct(pmove.velocity, wishdir);
|
|
addspeed = wishspeed - currentspeed;
|
|
|
|
// Buggy QW spectator mode, kept for compatibility
|
|
if (pmove.pm_type == PM_OLD_SPECTATOR)
|
|
{
|
|
if (addspeed <= 0)
|
|
return;
|
|
}
|
|
|
|
if (addspeed > 0) {
|
|
accelspeed = movevars.accelerate*frametime*wishspeed;
|
|
if (accelspeed > addspeed)
|
|
accelspeed = addspeed;
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
pmove.velocity[i] += accelspeed*wishdir[i];
|
|
}
|
|
|
|
// move
|
|
VectorMA (pmove.origin, frametime, pmove.velocity, pmove.origin);
|
|
}
|
|
|
|
/*
|
|
=============
|
|
PM_PlayerMove
|
|
|
|
Returns with origin, angles, and velocity modified in place.
|
|
|
|
Numtouch and touchindex[] will be set if any of the physents
|
|
were contacted during the move.
|
|
=============
|
|
*/
|
|
void PM_PlayerMove (void)
|
|
{
|
|
frametime = pmove.cmd.msec * 0.001;
|
|
pmove.numtouch = 0;
|
|
|
|
if (pmove.pm_type == PM_NONE || pmove.pm_type == PM_FREEZE) {
|
|
PM_CategorizePosition ();
|
|
return;
|
|
}
|
|
|
|
// take angles directly from command
|
|
pmove.angles[0] = SHORT2ANGLE(pmove.cmd.angles[0]);
|
|
pmove.angles[1] = SHORT2ANGLE(pmove.cmd.angles[1]);
|
|
pmove.angles[2] = SHORT2ANGLE(pmove.cmd.angles[2]);
|
|
|
|
AngleVectors (pmove.angles, forward, right, up);
|
|
|
|
if (pmove.pm_type == PM_SPECTATOR || pmove.pm_type == PM_OLD_SPECTATOR)
|
|
{
|
|
PM_SpectatorMove ();
|
|
pmove.onground = false;
|
|
return;
|
|
}
|
|
|
|
PM_NudgePosition ();
|
|
|
|
// set onground, watertype, and waterlevel
|
|
PM_CategorizePosition ();
|
|
|
|
if (pmove.waterlevel == 2 && pmove.pm_type != PM_FLY)
|
|
PM_CheckWaterJump ();
|
|
|
|
if (pmove.velocity[2] < 0 || pmove.pm_type == PM_DEAD)
|
|
pmove.waterjumptime = 0;
|
|
|
|
if (pmove.waterjumptime)
|
|
{
|
|
pmove.waterjumptime -= frametime;
|
|
if (pmove.waterjumptime < 0)
|
|
pmove.waterjumptime = 0;
|
|
}
|
|
|
|
if (pmove.jump_msec)
|
|
{
|
|
pmove.jump_msec += pmove.cmd.msec;
|
|
if (pmove.jump_msec > 50)
|
|
pmove.jump_msec = 0;
|
|
}
|
|
|
|
PM_CheckJump ();
|
|
|
|
PM_Friction ();
|
|
|
|
if (pmove.waterlevel >= 2)
|
|
PM_WaterMove ();
|
|
else if (pmove.pm_type == PM_FLY)
|
|
PM_FlyMove ();
|
|
else if (pmove.onladder)
|
|
PM_LadderMove ();
|
|
else
|
|
PM_AirMove ();
|
|
|
|
// set onground, watertype, and waterlevel for final spot
|
|
PM_CategorizePosition ();
|
|
|
|
// this is to make sure landing sound is not played twice
|
|
// and falling damage is calculated correctly
|
|
if (pmove.onground && pmove.velocity[2] < -300
|
|
&& DotProduct(pmove.velocity, groundplane.normal) < -0.1)
|
|
{
|
|
PM_ClipVelocity (pmove.velocity, groundplane.normal, pmove.velocity, 1);
|
|
}
|
|
}
|